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Depth of maximum of air-shower profiles: testing the compatibility of the measurements at the Pierre Auger Observatory and the Telescope Array

Pierre Auger Collaboration; Abdul Halim, Adila; Abreu, Pedro; Aglietta, Marco; Allekotte, Ingomar; Almeida Cheminant, Kévin; Almela, Alejandro; Aloisio, Roberto; Alvarez-Muniz, Jaime; Ammerman Yebra, Juan; Anastasi, Gioacchino Alex; Anchordoqui, Luis A.; Andrada, Belén; Andringa, Sofia; Aramo, Carla; Araújo Ferreira, Paulo Ricardo; Arnone, Enrico; Arteaga Velazquez, Juan Carlos; Asorey, Hernán Gonzalo; ... mehr

Abstract (englisch):

The Pierre Auger Observatory (Auger) and the Telescope Array (TA), located, respectively, in the Southern and Northern hemispheres, are the largest ultra-high-energy cosmic ray (UHECR) observatories. The Auger and TA Collaborations have collected unprecedented statistics providing us with a unique opportunity to search for the differences between the UHECR energy spectra and mass compositions in the complementary sky regions. To correctly attribute such differences to the properties of the UHECR sources or propagation, the systematic effects in the measurements of each observatory should be considered properly. In this context, the task of the Auger – TA mass composition working group is to identify possible differences of astrophysical origin in the measurements of the depth of the maximum of air-shower profiles, Xmax, performed at both observatories using the fluorescence technique. Due to distinct approaches to event selection and analysis at Auger and TA, the working group uses a specially designed method to transfer the Auger Xmax distributions into the TA detector. To this end, dedicated air-shower and detector simulations for the TA Black Rock Mesa and Long Ridge fluorescence detector stations were performed with the Sibyll 2.3d hadronic interaction model. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000163328
Veröffentlicht am 07.11.2023
Originalveröffentlichung
DOI: 10.22323/1.444.0249
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Institut für Experimentelle Teilchenphysik (ETP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2023
Sprache Englisch
Identifikator KITopen-ID: 1000163328
HGF-Programm 51.13.03 (POF IV, LK 01) Kosmische Strahlung Auger
Erschienen in 38th International Cosmic Ray Conference (ICRC2023) - Cosmic-Ray Physics (Indirect, CRI)
Veranstaltung 38th International Cosmic Ray Conference (ICRC 2023), Nagoya, Japan, 26.07.2023 – 03.08.2023
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Seiten Art.-Nr.: 249
Serie Proceedings of Science ; 444
Vorab online veröffentlicht am 25.07.2023
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